Fukuchilite Mineral Data

Fukuchilite Mineral Data +

General Fukuchilite Information

Chemical Formula:

Cu3FeS8

Composition:

Molecular Weight = 503.01 gm

Iron 11.10 % Fe

Copper 37.90 % Cu

Sulfur 51.00 % S

______

100.00 %

Empirical Formula:

Cu₃Fe²⁺S₈

Environment:

Found in an ore body of gypsum-anhydrite, occurring in interstices of small masses consisting of barite, covellite, and pyrite.

IMA Status:

Approved IMA 1969

Locality:

Hanawa mine, Akita Prefecture, Honshu, Japan. Link to MinDat.org Location Data.

Name Origin:

For Nobuyo Fukuchi (1877-1934).

Synonym:

ICSD 74217

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Fukuchilite Image

Images:

Fukuchilite

Comments: Dark brown fine-grained fukuchilite in white gypsum.
Location: Hanawa Mine, Kazuno City, Akita, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Fukuchilite Crystallography

Cell Dimensions:

a = 5.58, Z = 1; V = 173.74 Den(Calc)= 4.81

Crystal System:

Isometric - DiploidalH-M Symbol (2/m 3) Space Group: P a3

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.789(1), 1.685(0.8), 3.21(0.8),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Bayliss P , American Mineralogist , 74 (1989) p.1168-1176, Crystal chemistry and crystallography of some minerals within the pyrite group

Physical Properties of Fukuchilite

Color:

Gray.

Density:

4.9

Diaphaniety:

Opaque

Hardness:

6 - Orthoclase

Luster:

Sub Metallic

Optical Properties of Fukuchilite

RL Color:

Pinkish brown, similar bornite.

Calculated Properties of Fukuchilite

Electron Density:

r_electron=4.61 gm/cc
note: r_Fukuchilite=4.81 gm/cc.

Fermion Index

Fermion Index = 0.00617
Boson Index = 0.99383

Photoelectric:

PE_Fukuchilite= 22.82 barns/electron
U=PE_Fukuchilite x r_electron= 105.17 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Fukuchilite is Not Radioactive

Fukuchilite Classification

Dana Class:

2.12.1.7 (2)Sulfides - Including Selenides and Tellurides

(2.12)where Am Bn Xp, with (m+n):p=1:2

(2.12.1)Pyrite Group (Isometric: Pa3)

2.12.1.1 Pyrite FeS2 P a3 2/m 3

2.12.1.2 Vaesite NiS2 P a3 2/m 3

2.12.1.3 Cattierite CoS2 P a3 2/m 3

2.12.1.4 Penroseite (Ni,Co,Cu)Se2 P a3 2/m 3

2.12.1.5 Trogtalite CoSe2 P a3 2/m 3

2.12.1.6 Villamaninite (Cu,Ni,Co,Fe)S2 P a3 2/m 3

2.12.1.7 Fukuchilite Cu3FeS8 P a3 2/m 3

2.12.1.8 Krutaite CuSe2 P a3 2/m 3

2.12.1.9 Hauerite MnS2 P a3 2/m 3

2.12.1.10 Laurite RuS2 P a3 2/m 3

2.12.1.11 Aurostibite AuSb2 P a3 2/m 3

2.12.1.12 Krutovite NiAs2 P a3 2/m 3

2.12.1.13 Sperrylite PtAs2 P a3 2/m 3

2.12.1.14 Geversite Pt(Sb,Bi)2 P a3 2/m 3

2.12.1.15 Insizwaite Pt(Bi,Sb)2 P a3 2/m 3

2.12.1.16 Erlichmanite OsS2 P a3 2/m 3

2.12.1.17 Dzharkenite FeSe2 P a3 2/m 3

2.12.1.18 Gaotaiite Ir3Te8 P a3 2/m 3

2.12.1.19 Mayingite IrBiTe P a3 2/m 3

Strunz Class:

II/D.17-10 II - Sulfides and sulphosalts

II/D - Sulfides with metal: sulfur, selenium and tellurium < 1:1, Tellurides with Copper, Silver, Gold

II/D.17 - Pyrite group and related compounds, Fukuchilite - Micherenite

II/D.17-10 Fukuchilite Cu3FeS8 P a3 2/m 3

II/D.17-20 Villamaninite (Cu,Ni,Co,Fe)S2 P a3 2/m 3

II/D.17-30 Pyrite FeS2 P a3 2/m 3

II/D.17-40 Cattierite CoS2 P a3 2/m 3

II/D.17-50 Vaesite NiS2 P a3 2/m 3

II/D.17-60 Hauerite MnS2 P a3 2/m 3

II/D.17-65 Dzharkenite FeSe2 P a3 2/m 3

II/D.17-70 Krutaite CuSe2 P a3 2/m 3

II/D.17-80 Trogtalite CoSe2 P a3 2/m 3

II/D.17-90 Penroseite (Ni,Co,Cu)Se2 P a3 2/m 3

II/D.17-100 Laurite RuS2 P a3 2/m 3

II/D.17-110 Erlichmanite OsS2 P a3 2/m 3

II/D.17-120 Sperrylite PtAs2 P a3 2/m 3

II/D.17-130 Aurostibite AuSb2 P a3 2/m 3

II/D.17-140 Geversite Pt(Sb,Bi)2 P a3 2/m 3

II/D.17-150 Insizwaite Pt(Bi,Sb)2 P a3 2/m 3

II/D.17-153 Changchengite! IrBiS P 2₁3 2 3

II/D.17-155 Mayingite IrBiTe P a3 2/m 3

II/D.17-160 Maslovite PtBiTe P 2₁3 2 3

II/D.17-170 Testibiopalladite PdTe(Sb,Te) P 2₁3 2 3

II/D.17-175 Padmaite PdBiSe P 2₁3 2 3

II/D.17-180 Michenerite (Pd,Pt)BiTe P 2₁3 2 3

Other Fukuchilite Information

References:

NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Fukuchilite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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Print or Cut-and-Paste your Fukuchilite Specimen Label here :

Fukuchilite

Cu3FeS8
Dana No: 2.12.1.7 Strunz No: II/D.17-10
Locality:

Notes: